15255825539 has 2 divisors, whose sum is σ = 15255825540. Its totient is φ = 15255825538.

The previous prime is 15255825527. The next prime is 15255825547. The reversal of 15255825539 is 93552855251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15255825539 is a prime.

It is not a weakly prime, because it can be changed into another prime (15255825509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627912769 + 7627912770.

It is an arithmetic number, because the mean of its divisors is an integer number (7627912770).

Almost surely, 2^15255825539 is an apocalyptic number.

15255825539 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255825539 is an equidigital number, since it uses as much as digits as its factorization.

15255825539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700000, while the sum is 50.

The spelling of 15255825539 in words is "fifteen billion, two hundred fifty-five million, eight hundred twenty-five thousand, five hundred thirty-nine".